No Libbey expert here, but did a lot of digging and found some interesting things.First Gene Florence in his book "Elegant Glass of the depression era" lists Imperial "Candlewick" as being made from 1936 to 1984

Sklounion

Thanks Terry,Very much appreciated.I know that Fran is following this closely.Whilst Imperial did make this pattern, these latest arrivals, with labels, does beg the question whether Libbey had always had the pattern made and shipped from Czechoslovakia/Czech Republic.Regards,Marcus